Dayco 89395 Accessory Drive Belt Tensioner Assembly

Overview of Dayco Accessory Drive Belt Tensioner Assembly 89395

The Dayco Accessory Drive Belt Tensioner Assembly 89395 is designed for serpentine belt systems in select Chrysler, Dodge, Jeep, Mitsubishi, and Ram vehicles. This automatic tensioner ensures proper belt tension and alignment, contributing to the efficient operation of your vehicle's accessory drive components.

• Compatible with serpentine belt systems
• Automatic tensioner type for consistent belt tension
• Counter clockwise rotation direction
• Includes two pulleys: one 78mm diameter with 6 grooves, one 76mm diameter with a flat surface
• Pulleys widths: 29mm and 31mm respectively

Technical Specifications and Features

This accessory drive belt tensioner assembly features two pulleys designed to maintain optimal belt tension and reduce wear. Pulley 1 has a diameter of 78mm, 6 grooves, and a width of 29mm, while Pulley 2 measures 76mm in diameter with a flat surface and a width of 31mm. The tensioner operates in a counter clockwise direction and is automatic, allowing it to adjust tension dynamically as the serpentine belt system operates. These specifications make it suitable for various models including the Chrysler 1500, Dodge Ram 1500, Jeep Grand Cherokee, and Mitsubishi Raider.

Compatible Vehicles and Applications

This Dayco tensioner assembly 89395 is compatible with the following makes and models:

• Chrysler 1500, Aspen, Commander
• Dodge Dakota, Durango, Ram 1500
• Jeep Grand Cherokee, Liberty, Nitro
• Mitsubishi Raider

It is designed to maintain proper tension in the accessory drive belt system, ensuring reliable operation of components such as the alternator, power steering pump, and air conditioning compressor.

Common Issues Addressed by This Tensioner Assembly

• Eliminates belt slippage caused by improper tension
• Prevents premature belt wear and damage
• Reduces noise from loose or misaligned belts
• Maintains consistent accessory drive performance
• Helps avoid overheating due to belt failure

Installation Notes and Tips

When installing the Dayco 89395 tensioner assembly, ensure the serpentine belt is properly routed according to the vehicle’s service manual. The automatic tensioner requires no manual adjustment but verify the pulleys rotate smoothly and the belt is seated correctly in all grooves. Use appropriate tools to relieve tension safely during removal and installation. Inspect the belt for wear and replace if necessary to maximize the lifespan of the new tensioner.

Quality Assurance and Warranty

Dayco manufactures this accessory drive belt tensioner assembly to meet or exceed OEM specifications. The part number 89395 undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Dayco typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.